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My phone redmi note 5 pro drop down from 8 feet height , now its working properly but look vise not good, so how can i change its screen?

You can buy a replacement screen from Aliexpress. https://www.aliexpress.com/w/wholesale-r...There is a guide for Xiaomi 3 on how to change the screen. Xiaomi Mi 3 Touchscreen Replacement There are a number of guides for other Xiaomi models. I suggest reading a few before starting, purchase the tools needed from Ifixit and the replacement screen, then write your own guide for others wanting to replace their screen. I hope that this helps you get started and also contribute and help others.